The fog lights are not sold in pairs. You just have to buy two because the new design is different and nobody wants mis-matched fog lights. YOU CAN DEFINATELY TAKE THEM APART. I did mine and a friends...in fact, if anyone one has the old style, send them to me and i will do it for free. It only takes about ten minutes. There is a large gasket which "seals" the unit but the whole thing just snaps together...DONT PULL YOUR BUMPER OFF OR ANYTHING LIKE THAT!